As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN CRUISE, CREW RECEIVED NUMEROUS FAULTS MESSAGES. - AVIONICS SYS FAULT. NO RVSM . PAN PAN ISSUED WITH ATC. AVNX MAU 1A FAIL OCCURED IN FLT, ABS 1 FAIL & SPOILER FAULT. QRH PROCEDURE C/O. NIC & PROCESSOR MODULE 1 (MAU 1 - NIC 1) REPLACED AS PREVENTIVE MX AND TESTED SERVICEABLE IAW AMM 31-41-04/401.